Carcinoembryonic antigen blood test. Last reviewed: September 20, 2013. The CEA test measures the level of carcinoembryonic antigen (CEA) in the blood. CEA is a protein normally found in the tissue of a developing baby in the womb.The blood level of this protein disappears or becomes very low after birth.he CEA test measures the level of carcinoembryonic antigen (CEA) in the blood.
If the pH of your blood falls below 7.35, the result is a condition called acidosis, a state that leads to central nervous system depression. Severe acidosis-where blood pH falls below 7.00 - can lead to a coma and even death. If the pH of your blood rises above 7.45, the result is alkalosis.
Alkaline phosphatase is an enzyme produced by the body to help break down certain types of molecules, such as proteins. The liver produces most of the alkaline phosphatase in our bodies, but the intestines, kidneys and bones produce small amounts, too. Alkaline phosphatase is measured by blood testing. Called the ALP test, it is useful for diagnosing several diseases and conditions. For example, high ALP levels can indicate blocked bile ducts in the liver, bone disease or Celiac disease. Low ALP levels can indicate certain types of anemias or, rarely, specific types of cancer. It's worth noting that oral contraceptives (birth control pills) also can cause low ALP levels.